Fix replaying of captured objects during chunk building.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/22819011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16334 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Smaller instruction to test negative number on ia32

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23361030

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16335 ce2b1a6d-e550-0410-aec6-3dcde31c8c00